The Honeywell Elite Allergen is made of a reinforced pleated media designed to capture particles down to the micro particle level. The large surface area improves the efficiency of its dust-holding capacity. The unique construction of Honeywell Elite Allergen filters requires less energy for lower energy cost. Its electrostatic charge helps attract particles “magnetically” that otherwise would pass through. Housed in a recyclable clay-coated moisture resistant frame, this filter captures particles as small as 0.3 microns. In comparison, a human hair is approximately 100 microns in size. The Honeywell Elite Allergen is effective against the following contaminants: dust/lint, airborne dust mite debris, pollen, pet dander, mold spores, bacteria, microscopic allergens, virus carriers, and most smoke and smog particles.